Numerically controlled bending machine with adjustable camber

Abstract

This utility model discloses a CNC bending machine with adjustable curvature, belonging to the technical field of CNC bending machines. It includes a worktable with a rotating plate rotatably mounted inside. Two lower mold bodies are provided, each with grooves of different sizes. The two lower mold bodies are symmetrically arranged with respect to the center of the rotating plate. A dust suction pipe is installed inside a support frame, with one lower mold body located below the upper mold body and the other below the dust suction pipe. This application uses a rotatable rotating plate within the worktable, replacing the traditional cumbersome disassembly and installation steps, and achieving a "one-click" quick switching between lower mold bodies of different specifications. Simultaneously, multiple dust suction pipes can perform negative pressure suction to clean the grooves of the replaced lower mold body. No additional dust removal equipment is required, and there is no need to disassemble the lower mold bodies, greatly improving operational convenience.

Description

Technical Field

[0001] This utility model provides a CNC bending machine with adjustable curvature, belonging to the field of CNC bending machine technology. Background Technology

[0002] As a core piece of equipment in modern sheet metal processing, CNC bending machines utilize a computer digital control system for high-precision programming and control of the bending process. Their core working principle is based on two main methods to achieve precise adjustment of the workpiece's bending angle: First, a servo system precisely controls the downward pressure depth of the upper die; different pressure depths result in different bending angles, making this the most common and convenient online adjustment method. Second, by changing the lower die with different opening sizes (V-groove widths) or groove depths, the machine adapts to different sheet metal thicknesses and required bending radii; this method is often used to obtain specific bending shapes. Both technologies are quite mature, jointly ensuring the high efficiency and accuracy of bending processing.

[0003] However, the second approach mentioned above, which adjusts the curvature by replacing the lower die, has long suffered from significant practical drawbacks: operators must use tools to disassemble the lower die fixed to the bending machine, then install and secure the new lower die. This process is time-consuming and labor-intensive, severely impacting the efficiency of continuous production. Furthermore, the V-shaped groove structure of the lower die easily accumulates small metal shavings and dust during processing. Because the upper die must be precisely aligned with the groove of the lower die during pressing, the surrounding space is usually occupied by both dies, making it difficult for traditional dust removal devices to approach from above and effectively clean the dust inside the groove. Current technology requires either disassembling the lower die or moving the dust removal device above the lower die when the upper die is far away, cleaning it, and then removing it, resulting in inconvenience. Therefore, developing a solution that simplifies die replacement and facilitates lower die cleaning is crucial for improving the curvature adjustment efficiency and clean production capabilities of bending machines. Utility Model Content

[0004] The technical problem this invention aims to solve is that the disassembly and replacement of the lower mold body is troublesome, and it is inconvenient to clean the grooves of the lower mold body.

[0005] To solve the above problems, the present invention proposes the following technical solution: a CNC bending machine with adjustable curvature, including a worktable, on which an L-shaped bracket is fixedly mounted; an upper die body is slidably mounted inside the L-shaped bracket, and a lower die body corresponding to the upper die body is mounted on the worktable;

[0006] The workbench is equipped with a rotating plate, and there are two lower mold bodies with grooves of different sizes inside each lower mold body. The two lower mold bodies are fixedly mounted on the rotating plate and are symmetrically arranged with respect to the center of the rotating plate. A support frame is fixedly mounted on the workbench, and a dust suction pipe is installed inside the support frame to remove dust from the grooves of the lower mold bodies. One lower mold body is located below the upper mold body, and the other lower mold body is located below the dust suction pipe.

[0007] Preferably, a rotating motor is provided at the bottom of the workbench, and a rotating shaft is fixedly connected to the working end of the rotating motor, and the rotating shaft passes through the workbench and is fixedly connected to the rotating plate.

[0008] Preferably, a vacuum cleaner is provided on the support frame, and the working end of the vacuum cleaner is connected to the suction pipe; a plurality of suction pipes are provided, and the plurality of suction pipes are evenly distributed along the direction of the groove.

[0009] Preferably, a hydraulic press is provided on the L-shaped bracket, and a lifting plate located inside the L-shaped bracket is fixedly connected to the working end of the hydraulic press; the upper mold body is fixedly connected to the lower part of the lifting plate.

[0010] Preferably, the L-shaped bracket is provided with a terminal connected to the hydraulic press circuit, and the terminal is connected to the rotating motor and the vacuum cleaner circuit.

[0011] Preferably, a mounting block is fixedly connected to the lower mold body, and the mounting block is fixedly connected to the rotating plate by screws.

[0012] The beneficial effects of this utility model are:

[0013] 1. A rotatable rotating plate is cleverly designed within the workbench, upon which two lower mold bodies with grooves of different sizes are fixed symmetrically. When it is necessary to change molds to accommodate different bending requirements, simply drive the rotating shaft with the rotating motor to cause the rotating plate to move the two lower mold bodies to exchange positions, quickly rotating the other lower mold body to the working position (below the upper mold body). This process completely replaces the traditional cumbersome disassembly and installation steps, achieving a "one-click" quick switch between lower mold bodies of different specifications, greatly improving the efficiency and flexibility of continuous production.

[0014] 2. This utility model integrates the suction pipes onto the bending machine, achieving automation and routine dust removal. When the lower die body is not in operation and rotates with the rotating plate to below the suction pipes, multiple suction pipes can perform negative pressure suction to clean the grooves of the lower die. Without affecting the normal operation of the upper die body, without requiring additional movement of dust removal equipment, and without disassembling the lower die body, the accumulated metal shavings and dust can be cleaned, greatly improving operational convenience. Attached Figure Description

[0015] Figure 1This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view of the present invention.

[0017] Figure 3 This is a cross-sectional view of the workbench of this utility model.

[0018] Figure 4 This is a diagram of the internal structure of the support frame of this utility model.

[0019] 1. Workbench; 2. L-shaped support; 3. Hydraulic press; 4. Upper mold body; 5. Terminal; 6. Vacuum cleaner; 7. Support frame; 8. Rotating plate; 9. Groove; 10. Lower mold body; 11. Mounting block; 12. Display screen; 13. Lifting plate; 14. Rotating shaft; 15. Rotating motor; 16. Vacuum suction pipe. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] This utility model provides a CNC bending machine with adjustable curvature: it includes a worktable 1, on which an L-shaped support 2 is fixedly mounted; an upper die 4 is slidably mounted inside the L-shaped support 2, and a lower die 10 corresponding to the upper die 4 is mounted on the worktable 1; a hydraulic press 3 is mounted on the L-shaped support 2, and a lifting plate 13 located inside the L-shaped support 2 is fixedly connected to the working end of the hydraulic press 3; the upper die 4 is fixedly connected below the lifting plate 13. During operation, a metal plate is placed on the lower die 10, and the hydraulic press 3 is activated to move the upper die 4 downwards, using the cooperation between the upper die 4 and the lower die 10 to bend the metal plate.

[0022] As attached Figure 2 , 3 The worktable 1 has a rotating plate 8 rotatably mounted inside. Two lower mold bodies 10 are provided, each with a groove 9 of different sizes. The two lower mold bodies 10 are fixedly mounted on the rotating plate 8 and are symmetrically arranged with respect to the center of the rotating plate 8. A rotating motor 15 is located at the bottom of the worktable 1, and a rotating shaft 14 is fixedly connected to the working end of the motor 15, passing through the worktable 1 and fixedly connected to the rotating plate 8. The rotating motor 15 drives the rotating plate 8 to rotate, allowing the lower mold bodies 10 of different sizes to correspond with the upper mold body 4, thus achieving the effect of quickly changing the lower mold body 10 and thereby changing the bending angle.

[0023] As attached Figure 1 , 34. A support frame 7 is fixedly installed on the workbench 1. The support frame 7 has a dust suction pipe 16 inside, which can remove dust from the groove 9 of the lower mold body 10. One lower mold body 10 is located below the upper mold body 4, and the other lower mold body 10 is located below the dust suction pipe 16. A vacuum cleaner 6 is installed on the support frame 7. The working end of the vacuum cleaner 6 is connected to the dust suction pipe 16. Several dust suction pipes 16 are provided, and the several dust suction pipes 16 are evenly distributed along the direction of the groove 9.

[0024] As attached Figure 1 , 3 The L-shaped bracket 2 is equipped with a terminal 5 that is electrically connected to the hydraulic press 3, and the terminal 5 is also electrically connected to the rotary motor 15 and the vacuum cleaner 6. The operator can adjust and control the working status and parameters of the hydraulic press 3, the rotary motor 15, and the vacuum cleaner 6 through the terminal 5.

[0025] As attached Figure 2 A mounting block 11 is fixedly connected to the lower mold body 10, and the mounting block 11 is fixedly connected to the rotating plate 8 by screws, which facilitates the disassembly of the lower mold body 10.

[0026] The principle of this utility model

[0027] In actual operation, the device described in this application mainly consists of two automated stages: bending processing and mold switching and dust removal. When the equipment needs to perform a bending operation, the lower mold 10, located directly below the upper mold 4, is in the working position, such as... Figure 1 As shown. The operator controls the hydraulic press 3 via terminal 5 to drive the lifting plate 13, which in turn lowers the upper mold body 4, thus bending the sheet material placed on the lower mold body 10. After completing a batch of processing, if a change of shape is required for the lower mold body 10, the operator issues a command via terminal 5 to start the rotating motor 15. For example... Figure 3 As shown, the rotating motor 15 drives the internal rotating plate 8 to rotate 180° through the rotating shaft 14, causing the lower mold body 10, which was originally in the working position, to rotate away from the vacuum pipe 16. Meanwhile, the lower mold body 10, which was originally located below the vacuum pipe 16, rotates synchronously to the working position, waiting for the next bending operation.

[0028] During processing, debris and dust fall and accumulate in the groove 9 of the lower mold body 10. After the lower mold body 10 is switched, the debris-accumulated lower mold body 10 rotates to directly below the dust collection pipe 16, and the operator starts the vacuum cleaner 6 via terminal 5. Figure 3 , 4As shown, the suction power generated by the vacuum cleaner 6, through multiple suction pipes 16 evenly distributed along the groove 9, precisely and powerfully adsorbs the entire groove 9 of the lower mold body 10, thoroughly sucking away all the debris and dust accumulated in the groove. The dust removal operation can be automatically completed during the replacement of the lower mold body 10, or, when not bending, the rotating motor 15 can be started separately to move the lower mold body 10 to be cleaned to the position of the suction pipe 16. Therefore, by setting the rotating plate 8 and two lower mold bodies 10 of different sizes, the lower mold body 10 can be quickly replaced to adjust the bending angle, and the groove 9 can be quickly cleaned during the replacement of the lower mold body 10. The entire process realizes integrated management of processing, mold changing, and dust removal.

[0029] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A CNC bending machine with adjustable curvature, comprising a worktable (1), on which an L-shaped bracket (2) is fixedly mounted; an upper die (4) is slidably mounted inside the L-shaped bracket (2), and a lower die (10) corresponding to the upper die (4) is mounted on the worktable (1); characterized in that: The workbench (1) is rotatably equipped with a rotating plate (8), and there are two lower mold bodies (10). The two lower mold bodies (10) have grooves (9) of different sizes. The two lower mold bodies (10) are fixedly mounted on the rotating plate (8) and are symmetrically arranged with respect to the center of the rotating plate (8). The workbench (1) is fixedly equipped with a support frame (7), and the support frame (7) is equipped with a dust suction pipe (16) that can remove dust from the grooves (9) of the lower mold bodies (10). One of the lower mold bodies (10) is located below the upper mold body (4), and the other lower mold body (10) is located below the dust suction pipe (16).

2. The CNC bending machine with adjustable bending angle according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a rotating motor (15), and the working end of the rotating motor (15) is fixedly connected to a rotating shaft (14), and the rotating shaft (14) passes through the workbench (1) and is fixedly connected to the rotating plate (8).

3. The CNC bending machine with adjustable bending angle according to claim 2, characterized in that: A vacuum cleaner (6) is provided on the support frame (7), and the working end of the vacuum cleaner (6) is connected to the vacuum pipe (16); there are several vacuum pipes (16), and the several vacuum pipes (16) are evenly distributed along the direction of the groove (9).

4. The CNC bending machine with adjustable bending angle according to claim 3, characterized in that: A hydraulic press (3) is installed on the L-shaped bracket (2), and the working end of the hydraulic press (3) is fixedly connected to a lifting plate (13) located inside the L-shaped bracket (2); the upper mold body (4) is fixedly connected below the lifting plate (13).

5. A CNC bending machine with adjustable bending angle according to claim 4, characterized in that: The L-shaped bracket (2) is equipped with a terminal (5) that is connected to the hydraulic press (3) by circuit. The terminal (5) is equipped with a display screen (12) and is connected to the rotating motor (15) and the vacuum cleaner (6) by circuit.

6. The CNC bending machine with adjustable bending angle according to claim 1, characterized in that: An mounting block (11) is fixedly connected to the lower mold body (10), and the mounting block (11) is fixedly connected to the rotating plate (8) by screws.

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